666858373467 has 48 divisors (see below), whose sum is σ = 1058588023584. Its totient is φ = 370910707200.

The previous prime is 666858373459. The next prime is 666858373477. The reversal of 666858373467 is 764373858666.

It is not a de Polignac number, because 666858373467 - 2³ = 666858373459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666858373477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 407967 + ... + 1224807.

It is an arithmetic number, because the mean of its divisors is an integer number (22053917158).

Almost surely, 2^666858373467 is an apocalyptic number.

666858373467 is a deficient number, since it is larger than the sum of its proper divisors (391729650117).

666858373467 is a wasteful number, since it uses less digits than its factorization.

666858373467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817052 (or 817041 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 69.

The spelling of 666858373467 in words is "six hundred sixty-six billion, eight hundred fifty-eight million, three hundred seventy-three thousand, four hundred sixty-seven".